## Basic College Mathematics (10th Edition)

Estimate: $18$ Exact: $12$
Estimate: round the three numbers to 3, 2, and 3 and multiply. Exact: change the numbers into improper fractions: $\frac{3}{1}, \frac{3}{2}, \frac{8}{3}$ Multiply: $\frac{3}{1}\times\frac{3}{2} = \frac{9}{2}$ $\frac{9}{2}\times\frac{8}{3} = \frac{12}{1}$ Change into a mixed (or whole) number: $12$